(2)No suit or other legal proceeding shall lie against the Chief Executive Officer or Secretary or any other officer of the Government or a Panchayat or Zilla Panchayat concerned or any member, officer, servant or agent of such Panchayat, or Zilla Panchayat acting under its direction in respect of anything done or purporting to have been lawfully done and in good faith under this Act or any rule, regulation, bye-law or order made thereunder except with the previous sanction of the Zilla Panchayat or such officers as the Zilla Panchayat may specify.